New answers tagged earth-like
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A Related Problem and Solution
This relates to a similar problem and solution. The problem is over-tightening screws. The solution is Torque Drivers. They are special "screwdrivers" which act like normal screwdrivers until some specified force is reached. Once reached, they ratchet around, preventing over-tightening on the screw.
How does this apply? Apply ...
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The same way Blackbeard himself was so successful:
Demonstrate that while you don’t want to kill anyone you absolutely will if pushed, and will do so with extreme prejudice. Then also demonstrate that if your demands are met (in this case ‘turn your ship around and come straight into my docks’) you are entirely pleasant, businesslike and happy to let ...
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This depends on your definition of "catch"
Ah a classic useless genius, has a great idea but no common sense.
The carrier definition
You've equipped the carrier with reaper drones, range 1850km. Once you're within 600km of the target it can reasonably be considered caught. Being on the same side of England is good enough. They've been caught and they ...
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By not being dependent on wind
Since you don't specify, let's put some numbers to your question.
The slowest container ships today travel at around 12 knots (though they can go faster, they don't due to fuel economy). Let's say that your ship can go at least that fast.
The top speed of a fast moving passenger sailing ship is around 22 knots. However, this ...
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The nucleous of the planet could be pretty hot and provide enough energy for a stustainable life.
If the nucleous of the planet contains a enough radioactive materials, it could continue producing heating for billions of years, enough to allow the formation of a complex life.
The main problem is that there could be no photosynthesis, so no oxygen, or ...
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Welcome to the stack! Great question!
The core of the planet would still be quite hot, meaning that volcanoes and underwater vents could occasionally release hot (and therefore high-energy) bursts of liquid/gas into the environment. Perhaps this could be harnessed, somehow...?
This is the most likely answer, and it's occurring right here on Earth as we ...
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On Earth, continental drift is caused by volcanic activity; so, are oceans. So without a lot more knowledge of what other worlds are actually like to maybe contridict that, a little bit of simple reasoning tells us that a planet with oceans should have significant continental drift over that time scale which makes 3-4 billion years of continental separation ...
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Formation of super continents and their subsequent breakup is cyclical in nature.
Supercontinent Cycle
On geological time scales it would be reasonable to assume that there was a period in which there were only 2 major landmasses present on the planet.
Your timescale of 3-4 billion years is off by an order of magnitude of the Earth's, but it would be ...
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First thing first, Pangea means "all the earth", because it encompassed the whole of the emerged land back in those times.
So, from a logic point of view there can be no two Pangea.
From a geological point of view, if you look at the appearance of the present emerged lands, you might argue that we have less than 5 continents: Asia, Europe and Africa are a ...
answered Dec 4 at 20:50
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We're pretty sure it's happened right here on a earth, a few times. Pangea didn't break up straight into seven continents, it was two big bits for a while both before it formed and after it broke up, and Pangea wasn't the first time all the continents had joined together either.
So, not only is there no process that prevents it from happening, it's pretty ...
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I'm going to be honest, I think this sounds a little too far outside of science for this to work.
Base requirement is that the Earth and moon would have to be completely different because they would need to be closer and tidally locked so that the moon doesn't immediately rip the beanstock out of the ground. Pluto and Charon are a great candidate for that, ...
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Morality
Just because you can, doesn't mean you should. It's morally wrong to kill humanity to save the planet. Furthermore, not all humans are evil. A lot of humans care about the environment and do their part in keeping the planet healthy.
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Because "living beings, that are older than any other being on earth" is pretty long, I will just call them "elders".
Do you have an idea, what the elders actually are? Are they physical or are they some kind of spirit? Where do they live (in the oceans, on land, on mountains, inside the earth etc.)? Do they have any restrictions, for example they die in ...
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Because they would kill (or strongly affect) a part of yourself. With their ability to feel such a things (beyond the perception of humankind) as the planet emotions, they also are affected with such a brutal act as killing other living being and no one is willing to undergo that.
PS: is this Cameron's Avatar? :)
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Politics and bureaucracy
They’ve got some odd political power plays going on. As a result of this some things are expressly forbidden and others expressly required. This makes killing off humanity without breaking any of the rules... tricky.
Think of it like this: a patient has a disease that might kill them. The drugs to kill off the disease exist, but ...
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I would genetically engineer some giant long organ with a unusually high concentration of voltage-gated ion channels akin to an electric eel.
These organs are made of electrocytes, lined up so a current of ions can flow through them and stacked so each one adds to a potential difference.
Just stack up these organs in a line to create some directed field.
...
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Electromagnets operate simply by running a current through a coil. Nerves create, albeit very small, current by transferring ions across synapses. The ionic charge of one cell, thus gets transferred to other cells via ion transfer across the gaps between receptors on either side of synapses. So it's not exactly a continuous current, but it's also not ...
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To make a planet sized organism generate a continuous magnetic current strong enough to repel the solar wind, embedded permanent magnets would be entirely unsuitable - It would take a large planetoid's worth of magnesium or neodymium to generate a field strong enough, and be difficult to alter that field in response to stimuli or threat. In addition, that ...
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Magnetic Fields
Water is diamagnetic, meaning that its magnetic polarisation aligns itself opposite to an applied magnetic field (thus, water is repelled by magnetic fields). This has been demonstrated in "levitating frog" experiments. If you were able to somehow get a (monodirectional) magnetic field to protrude out of the ocean, you could hypothetically ...
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This is a major undertaking. You will need a civilization somewhere between 1 and 2 on the Kardeshev Scale, and you will need to do it manually. If you have a Dyson sphere you should be able to muster up enough energy to pull it off.
Start by boiling the oceans. Raising the global temperature to over 100C should do the trick. Alternatively, microwaving ...
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"It depends", as always.
In most plausible situations, you'll find that any moon of a gas giant will be tidally locked to its parent, eg. on a bit of the moon facing the planet, the planet will be in pretty much the same location in the sky at all times. I say "pretty much" because there are effects like libration which I can't fully quantify, but for all ...
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Yet another possibility is a combination of two things:
Planet's axis of rotation lies in the ecliptic or not far from it
Planet's sidereal year is more than four weeks long
Twice a planet's year the end of it's axis will point at the system's sun. One hemisphere will at that time have a week long day, the opposite one - a week long night. During a week in ...
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Unfortunately I do not think there is any way to achieve what you require. Imparting sufficient energy to Earth’s oceans by heating or rapid motion would destroy the entire surface of the planet and drag friction with the surface would force the water to eventually fall / condense back to the surface again.
Giving the water sufficient energy to reach ...
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Welcome to world building.
Actually it’s quite a simple problem if the planet has a slow rotation rate. If it takes 14 Earth days to make one complete revolution then it will have one week “days” during the summer and a one week “nights” during the winter. Incidentally it will also have one week “nights” in the summer and one week “days” during the winter, ...
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The easiest way to achieve this is through Axial Tilt and be closer to the poles. In point of fact, we already have this on Earth due to our own axial tilt. This is the same attribute that causes the seasons on Earth.
Looking at this picture from the second link above you can see that at certain times of the year, the closer to the poles you are the longer ...
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Let's clear up a common misconception before we get into the meat of the answer; the colour of a star is more to do with its energy output, although it can be affected by the Doppler Effect as well (stars moving away from us will appear redder, stars coming closer will appear bluer) if the relative velocities are high enough. So, no; it's not as simple as ...
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the names of plants and animals surely wouldn't be the same as we have
Required reading: https://tvtropes.org/pmwiki/pmwiki.php/Main/TranslationConvention
Should a salmon-like fish simply be called a salmon, or should I come up with a new word for it?
Required reading: http://tvtropes.org/pmwiki/pmwiki.php/Main/CallARabbitASmeerp
Beyond that, I don't ...
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